Question

The major product ‘P’ formed in the given reaction is

• A.
• B.
• C.
• D.

Hint:

Alkaline KMnO₄ is a powerful oxidizing agent that converts alkyl side chains on aromatic rings to carboxylic acid groups. Remember that the reaction conditions (alkaline and heat) are crucial for this transformation

Answer 1

The Correct Option is D

To determine the major product 'P' for the given reaction, we need to analyze the reaction mechanism and apply relevant organic chemistry concepts. Let's evaluate and explain the process step-by-step:

1. Identify the Reaction Type: The reaction given is likely an electrophilic aromatic substitution (EAS) if aromatic compounds are involved. Analyze the substrate to determine if it contains an aromatic ring and look for electrophilic reagents.

2. Assess the Substrate: If the substrate is an aromatic compound like benzene or its derivatives, consider factors such as electron-donating or withdrawing groups, which influence the site of substitution.

3. Determine the Electrophile: Identify the electrophilic species in the reaction. This species will attack the aromatic ring, leading to substitution.

4. Predict the Position of Substitution: For example, in benzene, substitution occurs typically at the ortho, meta, or para position based on the nature of any substituents already present on the ring. Electron-donating groups favor ortho/para substitution, while electron-withdrawing groups favor meta substitution.

5. Analyze the Options Provided: Carefully look at the options and compare them with your prediction based on the reaction mechanism. Identify which option matches your prediction for the major product.

Having followed these steps, the correct major product for the reaction is:

Option 4 represents the correct major product formed, as per the reaction mechanism discussed. The structural features and positioning of functional groups are consistent with the pathways of the electrophilic aromatic substitution reaction analyzed.

Conclusion: By understanding the mechanics of electrophilic aromatic substitution and correctly applying these principles, we can ascertain that the major product is Option 4. Always consider the effect of substituents and the stability of intermediates formed in such reactions to identify the product.